[spark] Correct the assignment of null to currentResult in PaimonRecordReaderIterator#close#7066

JingsongLi merged 1 commit intoapache:masterapache/paimon:masterfrom

LuciferYang:PaimonRecordReaderIterator-closeLuciferYang/paimon:PaimonRecordReaderIterator-closeCopy head branch name to clipboard